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특허 상세정보

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Passive water management techniques in direct methanol fuel cells

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) H01M-002/14    H01M-004/00   
미국특허분류(USC) 429/039; 429/040; 429/043
출원번호 UP-0873259 (2007-10-16)
등록번호 US-7541109 (2009-07-01)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Cesari and McKenna, LLP
인용정보 피인용 횟수 : 6  인용 특허 : 72
초록
▼

Passive water management techniques are provided in an air-breathing direct oxidation fuel cell system. A highly hydrophobic component with sub-micrometer wide pores is laminated to the catalyzed membrane electrolyte on the cathode side. This component blocks liquid water from traveling out of the cathode and instead causes the water to be driven through the polymer membrane electrolyte to the cell anode. The air-breathing direct oxidation fuel cell also includes a layer of cathode backing and additional cathode filter components on an exterior aspect of...

대표
청구항
▼

What is claimed is: 1. A membrane electrode assembly for use in an associated direct oxidation fuel cell, comprising: (A) a protonically conductive, electronically non-conductive membrane electrolyte, having an anode aspect and a cathode aspect; (B) an anode catalyst disposed in contact with said anode aspect of the protonically conductive, electronically non-conductive membrane electrolyte; (C) a cathode catalyst that is suitable for oxygen electro-reduction reactions being disposed in contact with said cathode aspect of the protonically conductive, el...

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